Locking attachment for valves



INVENTOR C'ommodore lllman ATTORNEY C. UTMAN LOCKING ATTACHMENT FOR VALVES Flled May 15. 1927 May 1, 1928.

Patented May 1, 1928.

PATENT omens.

(ammonium :UTKAN, or mouse, donnncm xctfm.

LOCKING ATTACHMEM Fem vaivii'si Aliplieetion filed m 13',

ready in use. i

A further objectis to provide a device of this naturtflwhmh Wlllbe simple In construotio'n, inexpensive to manufacture, easy to install and menipuliitqcompact, ornamental in. appearance, and very efficient and durable in-us'el M Withtliese' and other objectsin view there has, been illustrated on the accon'lpa'nyihg drawings on rerm inflvhi'chfthe invention may be convenientlyembodied in practice.

In'the dretving's:

t Fig. -1 representsan end'viewin elevation otthe'lboking attachment.

Fig.2 isa side View of these-me, Fig; 3 is etoppl'ail'v'ievv ofthe seine. 3 Fig.4 is a side view of a gas valve cock with thlocking att l l chment in operating positionthe valve being shown in the on position. I

Fig; 5 'is a viewsiniil aii' to Fig. 4-,but with 5 the' valve in the 01f position.

Referring now to the drawings in which like reference numerals denote corresponding parts throughout the several views, thelocking attachment-herein disclosed comprises :1 short hollow tubular sleeve hai 'in j a lower cylindi-icnl seetion"10* andanupper frust'oconical tapered section 11. The lockingah tachment is adapted tofit loosely around'a vertical valve plug 1.2 having an enlarged upper socket 13 for receiving ahoriizorita'l tapered handle 14. Thehan'clle l lis adaIjited to be heldin place by a screw rod threaded into the socket 13,said screw rodhavingn slotted heiid 15 located 'outsidethe larger end 17 ofthe handle 14:, clearlysho vnin Figs. {and The vertical valve plug 12 has a threadedjsocket in its bottom end fo'r receiving bolt 18,the upper end of which i is threaded and screwed intosaid plug socket. The bolt 18 has an enlarged bottom slottedf h'eed" 19 for engagin the lower end ing ofa'n ordinary gas stove which is a1 of allieli'cal spring 19, the upper end of said springengegi'ng a Washer 20 which is adapted to Contact with the base of the .plug 12 and the enlarged, slightly tapered, bottom leg 21 of aiv valve body 22.

Th valve body 22 is formed substantially in the shape of a cross and besides the en:

large dbottom leg 21 has a. similar enlarged, slightly tapered; top leg 23, and at pairlof horizontal threaded inner and. outer cylin drieal pipe; ends 24 and25. The threaded en'dQQfl is adapted to be connected to a gas s pply pipe26", while the threaded end 25 is adapted to receive a screw cap gas regulator nee'dle-va lve member 27 for closing it In order. to limitthe rotation of the valve plu'ggfllf! to ninety degrees, the top leg 23' of the valve casing2 2 is provided with a flat. slot 28 in its u "rper edge in which slides a pin 29'1jrojeeting ironi'one side of the plug 12.

For] the "pl'li pose of locking the tubular sleeve in"nonrrotati ve relation to the handle 14, the upper 3 conical sect 1011 -11 of said. sleeve is piovi'dedvvitha pair of elongated recesses v cesses 3Q are'looselv andslidably fitted over the sides of the handle 14, und'whenever the. handle14*isrdtaltedffor opening or elosing tlie va'lveftli'e looking sleeve attachment will turniwith it." e

.- In order toe-nestle lockingsleeve tononrot'a tively eiige e'wieh the pip'e sections 24 and 25' \vheii tlie gas valve cock has been turnedto; closed position the lower cylindrt cal-seetiol'i 110 of the locking sleeve is provi(le l \vit 1" a" pair of semi-circular recesses 32 shlijied tofit over the sections ill and 25.

In operation;when it is (lesii'edto place the locking sleeve ajttaehn'lent in position upon the gas'valve, it will onli be necessary to first remove the handle 14 from its socket 13 in the plug" 12 The locking sleeve may then be'slipped down over the plugl12 into the position shown in Fig. 5. whereupon the handle will be again SQIBWQd into the socket 13. When it is fdesired to turnon the gas, it will only I be necessary for the operator, using thefingers of one hand, to lift the locking sleeve attachment upwardly until the recesses -;32 are disengaged from the pipe sections 24 and 25. ,The valve handle 14 me ythen betnrned from the closed Position shown in Fig; 5 to the open position shown in Fig. 4, where the sleeve attachment will remain in unlocked position as long as the gas valve is open. Assuming the gas valve to be in open position, as shown in Fig. 4, when it is desired to close the valve, the operator will move the handle from the position shown in Fig. 4 to the position shown in Fig. 5. During this operation the sleeve attachment wil drop by gravity into interlocking engagement witi the pipe sections 24 and 25. In this position the locking sleeve will prevent the valve from accidentally being opened.

lVhile there has been disclosed in this specification one form in which the invention may be embodied, it is to be understood that this form is shown for the purpose of illustration only, and that the invention is not to'be limited to the specific disclosure but may be modified and embodied in various other forms without departing from its spirit. In short, the invention includes all the modifications and embodiments coming within the scope of the following claims.

Having thus fully described the invention, what is claimed as new, and for which it is desired to secure Letters Patent, is:

1. In a locking attachment for a handleoperated valve cock, a tubular member for engaging said handle and having slots in its lower end for non-rotatively engaging the casing of said valve when the hand e 1s located in the oil osition, whereby said handle cannot he accidentally turned to on position, said tubular member being open at both ends and non-rotatively connected with said handle at'all times.

2 In a locking attachment for a handleoperated valve cock having a stem fitting within a valve easing, a tubular member for loosely and slidably surrounding the stem of said valve, said tubular member having a slot in its upper edge to fit about said handle and hold said tubular member against rotation relative to said handle at allpositions of said handle, said tubular member also having a slot through its lower edge to fit over said valve casin and lock said tubular member against rotation relative to said casing when the valve cock is in closed position, said valve cock being capable of rotation to open position by operation of said handle only after said tubular member has been raised out of interlocking engagement with said casing.

3. In a locking attachment for a handleoperated valve cock having a stem fitting within a valve casing, a tubular member for loosely and slidably surrounding the stem of said valve, said tubular member having a pair of opposed slots in its upper edge to fit about said handle and hold said sleeve against rotation relative to said handle at all positions of said handle, said tubular member also having a slot through its lower edge to fit over said valve casin and lock said sleeve against rotation relative to said casing when the valve cock is in closed position, said valve cock being capable of rotation to'open position by operation of said handle only after said sleeve has been raised out of interlocking engagement with said casing.

4. In a locking attachment for a handleoperated valve cock having a stem fitting within a valve casing, a tubular member for loosely and slidably surrounding the stem of said valve, said tubular member having a slot in its upper edge to fit about said handle and hold said sleeve against rotation relative to said handle at all positions of said handle, said tubular member also having a pair of slots in its lower vedge to fit over said valve casing and lock said sleeve against rotation relative to said casof said valve, said tubular mem er having 7 a pair of opposed slots in its upper edge to fit about said handle and hold said sleeve against rotation relative to said handle at all times, said tubular member also having a pair of slots in its lower edge to fit over said valve casing and lock said sleeve against rotation relative to said casing when the valve cock is in closed position, said valve cock being capable of rotation to open position by operation of said handle only after said sleeve has been raised out of interlocking engagement with said casing.

6. In a locking attachment for a handleoperated valve cock having a stem fitting within a valve casing, a tubular member for loosely and slidably surrounding the stem of said valve, said tubular member having a pair of opposed slots in its upper edge to fit about said handle and hold said sleeve against rotation relative to said handle at all times, said tubular member also having a pair of slots in its lower edge to fit over said valve casing and lock said sleeve against rotation relativeto said casing when the valve cock is in closedposition, said valve cock being capable of rotation to open 7 handle only a ter said sleeve has been raised out of interlocking engagement with said casing, the angular position of the slots in the upper edge of said sleeve being at rightangles to the angular position of the slots in said lower edge.

7. In a valve, a casing, an upwardly proosition by operation of said jecting valve stem in said casing, a laterally extending handle secured to said valve stem, atubular member having an upper vertical slot non-rotatively engaging said handle at all times, said tubular member having a pair of lower slots extending upwardly into its lower edge for non'rotative- 1y engaging said casing when the handle is in the ofl position, said handle servingto hold said tubular member from removal.

8. In a gas range valve, a casing, an upwardly extending valve cock in said casing, a handle on said valve cock, a tubular member surrounding said valve cock and non-rotatively engaging said handle at all times, said tubular member having open slots in its lower end for interlocking with said casing when the handle is in the oil position for holdingsaid valve closed until said tubular member has been raised out of looking engagement with said casing, said handle serving to hold said tubular from removal.

9. In a gas range valve, a T-shaped casing having side arms, an upwardly extending valve cock in said casing, a handle on said member valve cock, a tubular member surrounding said valve cock and non-rotatively engaging said handle at all times, said tubular member having open slots in its lower end for interlocking with the side arms of said casing when the handle is in the oil position for holding said valve in closed osition until said tubular member has en raised out of locking engagement with said casing, said handle serving to hold said tubular member from removal.

10. In a valve, a casing, an upwardly projecting valve stem in said casing, a laterally extending handle secured to said valve stem, a tubular member rotatable relative to said casing and having an upper vertical slot non-rotatively engaging said handle, said tubular member having a air of lower slots extending upwardly into 1ts lower edge for non-rotatively engaging said casing when the handle is in the off position, and means for guiding said tubular member in its rotation to prevent it from tippin In testimony whereof, I have afiixed my signature to this specification. COMMODORE UTMAN. 

